Electrically-heated instrument.



J. A. CHAPMAN. BLEGTRIGALLY HEATED INSTRUMENT.

APPLIGATION FILED MAY 6, 1913 1,083,386. Patented Jan. 6, 1914.

- a a I a.

JOSEPH A. CHAPMAN, 0F FORT WORTH, TEXAS.

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Specification of Letters Patent.

- Patented Jan. 6, 1914.

Application filed May 6, 1913. Serial No. 765,912.

To all whom it may concern:

Be it known that I, JOSEPH A. CHAPMAN, a citizen of the United States,residing at Fort North, in the county of Tarrant and State of Texas,have invented certain new and useful Improvements in Electrically-Heated Instruments, of which the following is a specification.

This invention relates to an electrically heated instrument or tool ofthe scissors or pivoted handle type, and it is adapted to be used forcutting or singeing hair or for surgical purposes as a cautery. v

The instrument comprises two pivoted members one of which carries anelectrically heated wire forming one edge and the other of which forms ablade which presses the material or article to be out against the wirefor the purpose of dividing or severing.

When used as a hair cutter the blade will press the hair into contactwith thehot wire for cutting and singeing the same.

For surgical uses the instrument will at one stroke sever. and cauterizeli aments, blood vessels and the like at'a sing e operation, the twooperations of cutting and" cauterizing being performed at once.

The instrument is capable of other. analogous'uses.

In the accompanying drawings-Figure 1 is a plan view of the instrument.Fig. 2 is a section on the line 2-2 of Fig. 1.

Referring specifically to the drawings, 6

indicates the blade or jaw member provlded with a handle 7, and 8 theother member provided with a handle 9, these-members eing pivotedtogether at 10. The .member 8 is preferably recessed to receive a stripor plate 11 alon the side thereof, the'plate being fastened y screws 12.The edge of the member 8 has a groove 13, with a high resistance wire 14exposed along the edge,

said wire being set in a backing of asbestos 15 located in the, groove,and the return wire 16 extends through a closed'groove 17 near the backof the member, the two wires extending out through a bore 18 in thehandle 9 by which connection may be made to any source of current.

In the use of the device the material or article to be out or severed isforced into contact with thehot wire 14 by the pressure of the blade orjaw 6, whereby the material is severed and singed or cauterized at oneoperation, the instrument being capable of quick and easy manipulationlike a pair of scissors. The pressure applied to the material betweenthe two members insures the quick and complete severance of the materialor article to be cut and prevents any slip or misplacement during theact of cuttin T he instrument will be found especialily efiicient forsur 'cal operations, in whi quickness is desirable, as the cutting andcauterizing will be done at once, instead of 2. A cutting instrument ofthe scissors.

type, comprising two'pivoted members, one of which has an electricallyheated wire extending and exposed along the edge thereof, and the otherof which is adapted to press the material to be out against said wire.

3. A. cutting instrument of the scissors type, comprising two pivotedmembers, one of which has a groove in the edge thereof and anelectrically-heated wire in said groove and exposed on the side towardthe other member, whereby the latter may press the material to be cutinto contact with said wire.

In testimony whereof, I afiix my signature in presence of two witnesses.

' JOSEPH A. CHAPMAN.

Witnesses:

C. A. Coormz, O. P. HANEY.

